Juan HernÃ¡ndez Sierra
His first major international title won Hernández, 1987 in Havana, when he became World Junior Champion in the lightweight. He defeated there in the final Kostya Tszyu from the Soviet Union.
In 1988 and 1989 he lost the chemistry Cup against Siegfried Mehnert. His victory in four World Cups he succeeded in 1991 in Sydney (Final victory over Andreas Otto ), 1993 in Tampere ( 9:3 point - final victory over the Lithuanians Vitalijus Karpačiauskas, in the semifinals, he turned on the Ahlener Andreas Otto with 11:4. ), 1995 in Berlin (Final victory over Oleg Saitow ) and 1999 in Houston. At the World Championships in 1997 in Budapest, he was defeated by Russians Saitow in the semifinals.
At the 1999 World Championships, the judges evaluated the final against Timur Gaidalow, Russia, initially for this, but the judgment made reversed after protest Cuba and departure of the entire Cuban delegation and appreciated the struggle for Hernández.
Somewhat less successful was his performances at the Olympics, he succeeded in three participations no gold medal. In Barcelona in 1992, he failed in the final on Irish Michael Carruth and had to settle for silver. In Atlanta in 1996, he won again after a final defeat Saitow and silver in Sydney in 2000, he failed in the quarter- finals to eventual winners Jermachan Ibraimow from Kazakhstan.
Hernández was from 1990 to 1997 and 2000 Cuban welterweight champion. Other successes have included two victories at the Central American and Caribbean Games (1990 and 1993), the Pan American Games (1991 and 1999 ) and World Cup tournaments ( 1990 and 1998).